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LM3671MFX-2.8 from NSC,National Semiconductor

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LM3671MFX-2.8

Manufacturer: NSC

LM3671, LM3671Q 2MHz, 600mA Step-Down DC-DC Converter

Partnumber Manufacturer Quantity Availability
LM3671MFX-2.8,LM3671MFX28 NSC 388 In Stock

Description and Introduction

LM3671, LM3671Q 2MHz, 600mA Step-Down DC-DC Converter The LM3671MFX-2.8 is a step-down DC-DC converter manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Output Voltage:** Fixed 2.8V  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 600mA  
- **Switching Frequency:** 2MHz (typical)  
- **Efficiency:** Up to 96%  
- **Quiescent Current:** 16µA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOT-23-5  

### **Descriptions:**
The LM3671MFX-2.8 is a high-efficiency, step-down DC-DC converter designed for battery-powered applications. It provides a fixed 2.8V output and operates from a wide input voltage range, making it suitable for portable devices. The device integrates a synchronous rectifier for improved efficiency and features a low quiescent current to extend battery life.

### **Features:**
- **Fixed 2.8V Output Voltage**  
- **High Efficiency (up to 96%)**  
- **Low Quiescent Current (16µA typical)**  
- **2MHz Switching Frequency**  
- **Synchronous Rectification**  
- **Thermal Shutdown Protection**  
- **Short-Circuit Protection**  
- **Soft-Start Functionality**  
- **Small SOT-23-5 Package**  

This information is strictly based on the manufacturer's datasheet and does not include any additional guidance or recommendations.

Partnumber Manufacturer Quantity Availability
LM3671MFX-2.8,LM3671MFX28 NS 6000 In Stock

Description and Introduction

LM3671, LM3671Q 2MHz, 600mA Step-Down DC-DC Converter The LM3671MFX-2.8 is a step-down DC-DC converter manufactured by Texas Instruments (NS stands for National Semiconductor, which is now part of Texas Instruments).  

### **Specifications:**  
- **Output Voltage:** Fixed 2.8V  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 600mA  
- **Switching Frequency:** 2MHz (typical)  
- **Efficiency:** Up to 96%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOT-23-5  
- **Features:**  
  - Ultra-low quiescent current (15µA typical)  
  - Automatic PFM/PWM mode switching  
  - Soft-start function  
  - Thermal shutdown protection  
  - Short-circuit protection  

### **Description:**  
The LM3671MFX-2.8 is a high-efficiency, step-down DC-DC converter designed for battery-powered applications. It provides a fixed 2.8V output and is optimized for low-power portable devices.  

### **Features:**  
- High efficiency across a wide load range  
- Low dropout operation  
- Small PCB footprint due to high switching frequency  
- Minimal external components required  
- Suitable for space-constrained applications  

This information is based on the manufacturer's datasheet. For detailed performance characteristics, refer to the official documentation.

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